Shiftable nut fastening



F. S. CARR SHIFTABLE NUT FASTENING De@ 11,- 1928. 1,694,580l

Filed July 22, 1925 i. Patented Dec. '1928.

UNITED- STATES PATENT oFFlCE.

FRED S. CARR, oE NEWTON, MASSACHUSETTS, ASSIeNoR To CARR EASTENER 00M- e PANY, 0E CAMBRIDGE, MASSACHUSETTS, A CORPORATION or MAINE.

SHIFTABLE NUT FASTENING.-

Application filed July 22, 1925. Serial y1,310.- 45,279.

This invention aims to provide an improved shift-able nut device.

Reference is hereby made to a divisional of this application, Serial No. 166,147, filed February 5,1927. f f l In the drawings which illustrate a ypreferred embodiment of my inventaion:

' Fig. 1 is an elevation view of a. Window, part of thesurrounding frame being broken away; .e

Fig. 2 is an enlarged section on the line 2,-2 of Fig. 1 being partly in elevation and shows ing the trim or sill strip spaced away from the glass; l

Fig. 3 is a section similar to Fig. 2 but showing the trim strip pressed against the glass; f.

Fig. 4 is a section on the line 4-4 of Fig. 2 being partly in elevation;

Fig. 5 lis a plan section on the line 5 5 of Fig. 4;

Fig. 6 includes bottom, side, and top views respectivelyof the sbiftable nut device, and

F 7 illustrates the manner in which the nut device is secured to the frame part.

Referring to the drawings, I havel illustrated a nut device in connection with securing trimming strips to windows and the like. The device illustrated is particularly, though not exclusively, useful in automobile bodyl `construction for easily and quickly securing trimming strips of wood or metal to the body. The installationshown in the drawings in# cludes a'metal window framepart or sill sup- )ort 1 having its exposed surfaces covered with upholstery 2, a glass 3 .which may or may rnot be raised and lowered, a plurality of metal trim or sill strips 4 forming. a casing for the glass, shiftablenut devices secured to theframe part and screws 5 for engagement with the nut devices to Secure the strips in place.

The frame part 1 is initially prepared for the' nut device by forming a depressed portion 6 therein about midway between theglass 3 and the inner edge of the frame. At the bot- A tom of the depressed portion 6 is formed an aperturey 7 having opposednotches 8 to receive the nut device as hereinafter described.

The'nut device includes ahnut holder 9` pressed from'a single piece of metal and a nut 10 also pressed from a single piece of metal. The nut holder is provided with a base portion 11 having anaperture extending therethrough, opposed relatively long resilient n-` REILSSUED illustrated in Fig. 6. The nut 10 has a base 14 from which'is pressed a boss `15 screw threaded on the inside for reception of a screw 5. Parallel divergi-ng flanges 16 extend from the base 15 and are presented at ,two sides-of the nut. These anges 16 terminate in Substantially thev same plane as the-end of the bossg15 as illustrated in Fig. 4, and provide guides for the nut.

- The nut unit is assembled at the Ipoint of manufacture and while the nut is shiftable relative to the holder it is held in assem bled relation therewith by the ngers 12 which overlie the nut sufficiently to prevent its becoming disengaged therefrom. The aperture in thebase 11 of the nut holder is larger than the boss, but the boss is prevented from entering the apertureand interfering with the operation of the nut by the flanges 16 whichspan the aperture and guide the nut along the base portion 11 of the holder as illustrated in Fig. 6.

nThe trim strip 4 is formed from asin le piece of metal and is provided with a p urality of screw receiving apertures 17 Surrounded by tapered walls 18 to provide for countersinking the heads of the screws l5.

lAssembly vof the installation may be effected by first securing the nut unit to the frame part 1. This may be accomplished by 'zoy entering one of the fingers 12, which may or may not be contractible and expansible, into one of the notches 8 at one side lof thelapern part thereby to securely hold. the device in place relative to the frame part 1. When thus secured to the frame the holder is held against rotation by cooperation between the Slots 8 and the fingers 12 while the nut which yis generally rectangular in outline, is ,-heldi against rotation by the fingers 12 and the projections 18. The' nutris free tolshift trans-` versely in all directions relative to the nut holder and the frame 1 and is limited in its movement by cooperation between the flanges 16 of the nut and the fingers 12 and also by cooperation between the boss 15 and the projections 13. After the upholstery 2 has been stretched over the frame 1 the trim strip l may be placed over the upholstery and a screw 5 entered in the aperture 17. This screw 5 passes through the upholstery, through the aperture 7 in the depression 6 and enters the threaded boss 15 of the nut. By turning the screw 5 it may be threaded into the boss 15 as best illustrated in Fig. 2. During the screwing together operation, the nut may shift in any transverse direction, as above described, so as to align itself with the screw.

Where the trim strip is used at the edge of a frame, as in the window frame illustrated in the drawings, it is sometimes necessary to shift the strip sidewise so that it may be aligned with the edge of the frame or pressed against the glass as illustrated in Fig. 3. This movement may be greater' than the usual shifting movement. of the nut for correcting misaligned holes as shown and described in cooperating applications and therefore provision has been made for permitting greater sidewise shifting movement of the nut to provide for movement of the strip. The drawings illustrate the fact that the nut may shift to a greater extent toward the projections 13 than toward the fingers 12. Thus the notches 7 at the sides of the apertures are formed lengthwise of the strip so that when the nut unit is secured to the frame 1 the projections 13 are located erosswise'of the strip to permit greater shift of the strip in the proper direction as fully illustrated by Figs. 2 and 3.

During the assembling operation of the installation the screws are turned to tighten the nuts but before finally kclamping the stripin place it is shifted to its proper relationv with the frame and then the screws are given a final twist. to clamp the strip tightly against the frame 1 with the upholstery gripped tightly between them.

While I have shown and described a preferred embodiment of my invention, it will be understood that changes involving omission, alteration, substitution and reversal of parts and even changes in the mode of operation may be made Without departing from the scope of myinvention which is best defined in the appended claims.

Claims:

1. A shiftable nut fastening device including a nut holder having resilient means for engagement with a suitable support and a shiftable nut assembled with said nut holder, said nut having a boss cooperating with lugs presented by said holder for limiting crosswise movement of said nut relative to said resilient means.

2.. A shiftable nut device comprising, in con'ibinatien, a nut. part having a base portion and a boss portion, a nut holder presenting means for holding said nut in assembled relation therewith and for securing said device to a support and opposed proiectionf;

for cooperating with the boss portion to limit transverse movement of said lnut in a direction crosswise relative to said means presented by said holder.

3. A shiftable nut device comprising, in combination, a pressed metal nut holder and a pressed metal nut, said holder having a base portion presenting an aperture therethrough to permit. a screw to pass therethrough, opposed fingers extending therefrom and overlying portions of the nut to hold the nut in assembly with the holder, a boss presented by said nut and extending toward the base of the holder, opposed flanges presented by said nut having their edges terminating in substantially the same plane as the end of said boss to prevent entrance of said boss in the aperture provided in the base4 of the holder and opposed projections extending from the base of said holder to limit the movement of said nut in any direction generally crosswise relative to said fingers.

4. A shiftable nut device comprising, in combination, a pressed metal nut holder and a pressed metal nut, said holder having a base portion presenting an aperture therethrough to permit a screw to pass therethrough, opposed fingers extending therefrom and overlying portions of the nut to hold the nut inassembly with the holder, at least one of said fingers being contractible and expansible, a boss presented by said nut and extending toward the base of theholder, opposed iianges presented by said nut having their edges terminating in substantially the same plane as the end of said boss to prevent entrance of said boss in the aperture provided in the base of the holder and opposed projections extending from the base of said holder to limit the movement of said nut in any direction generally crosswise relative to said fingers.

In testimony whereof, I have signed my' name to this specification.

FRED s. CARR. 

